	.DEF PPUCTRL,    $2000
	.DEF PPUMASK,    $2001
	.DEF PPUSTATUS,  $2002
	.DEF PPUSCROLL,  $2005
	.DEF PPUADDR,    $2006
	.DEF PPUDATA,    $2007
	.DEF OAMADDR,    $2003
	.DEF OAMDMA,     $4014